Nangong Meng transmigrated, bringing along a dream-simulation System that could take him to various Kamen Rider worlds.
"Current world: Kamen Rider Zi-O"
"Related event: The Advent of Oma Zi-O!"
"..."
Having gained the power of an Another Rider, Nangong Meng thought: Since it's all a dream anyway, why not do the things he's always wanted to do?
And so...
- He stole Woz's job, arriving ahead of time at the old Demon King's side to proclaim, "Celebrate!"
- He ran over to the gyoza man just after he'd shouted "Ho↗jo↘ E↗mu↘," and loudly sang his heart out at the hundred-meter race: "I did Billy~♪"
Nangong Meng had always upheld the spirit of "there is no Rider more loving than me." It wasn't until one day, when he was no longer in a dream simulation but facing reality, that he learned what it was like to wonder...
"What should I do if I step outside and get blocked by twenty perverts in skintight suits, and it looks like even more are on their way?"
"Thanks for asking. I'm at Shocker, and I've run into skintight-suit perverts too.
So why not prove yourself and say, 'There are times when a man has to fight even though he knows he'll lose'?
Trust me, you can become light too!"